Systems of Linear Equations

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What are systems of linear equations?

• a set of two or more linear equations in the same variables
• a polynomial with three terms
• set of two or more linear inequalities in the same variables

The solution of a system of linear equations is...

• the y-intercept (b)
• the intersection of the two equations on a graph
• the second equations' answers
• the slope (m)

Which of the following are ways to solve systems of equations? 

• Graphing
• Substitution
• Elimination
• All of the above

The graphs of two linear equations are shown. What is the best estimate of the solution to the system of linear equations?

• (2, -5)

• (5, -2)

• (-5, -2)

• (-2, 5)

• (-2, -5)

What is the solution?

• One Solution
• No solution
• Infinitely Many Solutions
• (0, -1.5)

How many solutions will this system have? 

• No solution
• One Solution
• I Don't Know
• Infinitely Many Solutions

Which system of equations is represented by the graph shown?

• y=-x-1 and y=x+3

• y=3x and y=x

• y=x-3 and y=x+1

• y=x+1 and y=-x-3

• Yes

• No

• Yes

• No